Poet: An OOP Extension to Tcl Supporting Constraints, Persistence, and End-User Modification Philip J. Mercurio Thyrd.org
[email protected] Abstract Integrated Construction Set) supports end-user inspection and modification of a running application. The primary tool is an object browser that displays an object's attributes Poet (Prototype Object Extension for Tcl) extends the Tcl (called slots), methods, constraints, and relationships to language with objects featuring dynamic, prototype-based other objects. Poetics also employs Poet's optional type inheritance, persistence, and one-way constraints between annotation feature so that appropriate content-specific object attributes. Poet includes wrappers around the Tk and editors can be created to edit slot values. A syntax- BWidget widgets that are automatically generated using highlighting code editor allows an application's source code introspection. This paper also describes Poetics (Poet to be edited, saved, and reloaded in a running application. Integrated Construction Set), a sub-project within Poet to create tools to allow a Poet application's code and user As of this writing, the Poetics tools are incomplete and not interface to be modified by the end-user, from within a ready for end-user use. However, even in its current, running Poet application. The goal of Poetics is to provide limited form Poetics can be very useful to the Poet some of the functionality of an integrated development application developer. environment to the user of a Poet application. An object inspector and code editor are the beginnings of the Poetics Related Work toolset. The primary inspiration for Poet is Self [2], a dynamic object-oriented programming language and environment.